Re: [PATCH v5 06/14] arm64: dts: imx8mp-var-som-symphony: enable PCIe

[Frank Li <Frank.li@oss.nxp.com>]

On Mon, Jun 29, 2026 at 06:40:29PM +0200, Stefano Radaelli wrote:
> Hi Frank,
>
> On Mon, Jun 29, 2026 at 12:30:09PM -0400, Frank Li wrote:
> >
> > You have to provide all clocks, otherwise, whole clocks and clock-names will
> > by overwrite with one clock "ref".
> >
> > suppose CHECK_DTBS should report warning about clocks items.
> >
> > Frank
> >
>
> thanks for checking.
>
> In this case the SoC dtsi does not provide any clocks or clock-names for
> the PCIe PHY node, so this is not overriding an existing clock list. It
> only adds the external reference clock used by the board.
>
> This follows the same pattern used by the i.MX8MP EVK, where the PCIe
> PHY node only provides the external "ref" clock together with
> fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>.
>
> This is also why CHECK_DTBS does not report any warnings for this node.

Oh! I missed think it is pcie node.

Frank

>
> $: sed -n '/^&pcie_phy {/,/^};/p' arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> &pcie_phy {
>         fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
>         clocks = <&pcie0_refclk>;
>         clock-names = "ref";
>         status = "okay";
> };
>
> Thanks,
> Stefano